{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51702",
    "entityType": "User",
    "nonce": "0xabc053d26349201cf3aca1d3f533ee4ead4bd51b9861d51af48ee8f06664c6bc",
    "signature": "0xc0013e85f347c85249d57f5bd1e9a215b607156a4ccd48ec3df9f81ca5531d3f0101d135c33ec64ff27439c9e8bc4af6eeed8e79314624f20e0a9d1d22397ba11c",
    "signer": "0x70198A93751A42B30b73B4b84803dc6Fe67290C3",
    "userId": "37067745"
  }
}