{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "201666623",
    "entityType": "User",
    "nonce": "0x2bb2bca08ea695d5fbb7702dcbc4e8d39cb9397b3217fe4a9e3d7f4d32df1d4a",
    "signature": "0x08224c10b3644f42536d7c8b1e4eae4ef3411f4243542616af27576101fddd68669555bf7243a9f3385d033509a0275d1ff5fe8bd76bf7add01383736c178a651b",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}