{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "215587616",
    "entityType": "User",
    "nonce": "0x6d8fac46d31d93741d07c3aca08bd7c3bb9db2c3ba1c5d4e19192c54a98d1dc0",
    "signature": "0x53deeae759b9731bff711c48c7a21d94f186a9ab36753961d2bacf7c8e60e2053e975dde656f0366d594df76ce21f5858c71ba806c348520b45238937bca468c1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}