{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4cd6db5d6a4d32633d5d426be3993d940f8c364c754b3a0a7089f43cb06b28d6",
    "signature": "0xf0ceb97d5c15933b332d3dd6532ade4f47a5de9cac78173421a43d1d7a987285514d4f042bfa4977c635380c45a85c24ddb84c535c2c7f6684bfa3cd100e3fcb1b",
    "signer": "0x2eE667aA1cC78fB297F4b0f4d02EfA8FA8ffEE11",
    "userId": "538036182"
  }
}