{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7504",
    "entityType": "User",
    "nonce": "0x0ceaa26c51d92a69a983b529f7cb838b2ec573ab79af417a2eba7544d8e3f56c",
    "signature": "0x9e54e1ee19c4e1d5520d1860cb5dcae8a87ae1668f6418aab56b82a7aff74f73407e9ceefce61ab475bd83079cabc36d0265d51a3e7a806542d425e2767b5eff1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}