{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "991821949",
    "entityType": "User",
    "nonce": "0x7c95abdabf4aec7d9c402299ef68b24e75d20a14bd206c8357667f7d6b3720a3",
    "signature": "0xd0fdfa269dc7459a67ee63210cf2f40b02c3b872e6ca9a5fe376e53410e67a9f55d1ef3497101cf0a8afd9534c492275a6882045295d6e165e821b97fac1753b1c",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}