{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "189807",
    "entityType": "User",
    "nonce": "0x329ffc5d7a7fa50f040b13671ca0050a537b20c0e1d0fc6e7ca7985a51833a89",
    "signature": "0x7fed22d0e0acb41d62b2ea35ebb38c118415d808c6ee8f9a763aea1532e2d015395e4a924a0728ba6801f32c60ebe79154596e72fcd8bd0932f8c1b7eb637f731c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}