{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1963812",
    "entityType": "User",
    "nonce": "0xc9414088d2374c9ce339a9139fe187f7585b86b52e33113eb2380da23d0635fb",
    "signature": "0xc79444d6d9eb959e215bde4509bb8868700f4534497c7b2b96b4f5044024a31d49f6874a8b0050c5c2428f772d4d6fe2aa4264173f66be08c0613439050561c91c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}