{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "451684863",
    "entityType": "User",
    "nonce": "0xc3fe76f16ae361f0f2c9fd3f3ec6a512c00e7889a53ac9cb17260304b3326f12",
    "signature": "0x95b0a2d9e7115b8c3240ce353d14d2715187477197a3f47e3770cac1ae6616c01e0f6c3d3b6bd9d40a70ed0123b076f083ac447230eabfa5f85dbad64aab89bf1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}