{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa7f0ffe7736714b730855587b57d9d6e7934f94fd8015c1746831394334558fb",
    "signature": "0xfe34e2ebb666548e6e53205744a380ef3e395c95c74db256dcf03b5e02bd4dbb649bcd0d62663c9cd58fbe5dd9bca60c941dd7e82a024038bb12da5fc7faee8e1c",
    "signer": "0x96631AE8EE332f8b0A00D0Ff2BCFBEb0092b5dfb",
    "userId": "256491722"
  }
}