{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2018628",
    "entityType": "User",
    "nonce": "0x95bc591890d8ab189f67a79760de098b23b8bd17245078b7bc3c7cba5f2e2049",
    "signature": "0xafc9a5d5c771f7bb7b485b1e25aee74ef4a32ac3d1e8dbda24d9c35a3dcd8e1d48034a1c326e051720aa6089f629e9dd84f98a5b8eb38358f1a3ea98d92bc5711c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}