{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa111c46368badb88d96e9818189dd31d410980363b2f82103961f2a76902e59e",
    "signature": "0x2c55f0e77ba3dcfa7aa88f5fc77eec52d4c73ac42be84ba944795ca6c482fd3d16fc62ce5327309437064839bc013be0bb751875d13050c0afb19240d2d92f621b",
    "signer": "0xe7F103EC179949d67328bEBb7E5BF32D7B17c793",
    "userId": "718082541"
  }
}