{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10449019",
    "entityType": "User",
    "nonce": "0xce3662e0c02ce0bc5d073d6ba8a83c9f2ca9317b185c14df319bd771c5678d5a",
    "signature": "0x06647cbea9f26bcc3d234e32c39ef10d60b0e8980622085fddd8225f5058b4fd0f90bdf300e3dc2d029515fdd15300a15b4b1c51d6eb30f96b3c6f26e84756ca1b",
    "signer": "0x41169dA28a7d95b19615713245D5f46546c83008",
    "userId": "931487252"
  }
}