{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325935",
    "entityType": "User",
    "nonce": "0x915cca47c2da1ef712878da244e018c7dec161a0bbed401328c82eb46d799260",
    "signature": "0x464c06bfbb4a2cc0cf845271ff6232238f086bfb3ac170f6b99ae87c97262f2f271d5a1701427f50976d4396a4b7779ff0563a86195a502b72b5b93bd7e193fc1c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}