{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "424163",
    "entityType": "User",
    "nonce": "0x82ae1783a54a8e9f3920086e406867ccca241a7f90e7ecb639affbc41edaa670",
    "signature": "0x7e177868297e95e6224ac4047a81983ac7c6dbb251b2e2af6ef3abe5882d368747af11e2bb5a2129b19870dad6390d642d6f11a638e7c6498a17409ad99538f31b",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}