{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "140545",
    "entityType": "User",
    "nonce": "0x4476c6e81029960107b52eb9ca3cee50a781a429fbc8cb0bc2cbf5c02781043d",
    "signature": "0x9dad15b406c0f81188095051b4bb9633071d1e0e120a1318c69c4494b2e610a53437f68f3d51d984342c6b0e9544b5437d12b6ac182f6b050362bf842ef879b61c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}