{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "244961",
    "entityType": "User",
    "nonce": "0x121105b01e35c18fbd4d15a8196f4810f60e724ea587ddc45b0092827f7ff7ad",
    "signature": "0xaf77079c5e5e4e51180e4720a4f56f9834cfc295eec98ef232bf774faf7f86c8763663f4fdaf26ef61a6ab7a9440e8835c50c17b97c047fefc8f2c3e74df23051b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}