{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x111fc14920cc181d9ae4331345fa7449ba9190c737741fd82a8515d170c082b7",
    "signature": "0x1191453b118b6e1e27678de6211551d8424cd13564b6e51c1e4ef61a080956db69e69cd22810c065e41e6ab084ac576b36ac00426b37d19cc8f03bcf54537c101c",
    "signer": "0xDe6128EEdBB4d15D391871267E286E878C7011B6",
    "userId": "144906061"
  }
}