{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54899",
    "entityType": "User",
    "nonce": "0xd42dadeaedd4b583e7590e1866a356e4fec0589a9086f691d4efac659c4ea4be",
    "signature": "0x96aef5bd5e14e66b1b0f5ca652e9b5fcd3690cf6a2103f538b75f20bcdb9c6ed1eea4987008a771a52d49954fc56dab1149e9f687df3f163fdd1485e276e8fe81b",
    "signer": "0xdB791822A11f5aDc830669bdADa8121a4558D7A3",
    "userId": "347139808"
  }
}