{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe3f84544b2a107c3e37b78e7fe795f0b747b25bbc1fdba2abb53403ca0e35563",
    "signature": "0x3e0edda06ab2652f66e7a2845a044a6a6743dda1b05452d425b7a2651dfa25356c085c44bbec022c4319d868ddf2cbe7a872f13ab8cc244b7b9643d6dcdd95a31c",
    "signer": "0xA9123d5a3EF14132eCBD3c213399Dec9883378e6",
    "userId": "705031905"
  }
}