{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x228ca3f50e8f7c356cf686c4eec4c08a918c3a230e8f6a1d533dac953305f30c",
    "signature": "0x8305100ca4108c6d008c7d1215e5dddfb1bd857b89fd9e62666965e33717d7a4212845861e4df572fd320243fe4d525c9f97ecc63b96d09bc9ca727b23f2baaa1b",
    "signer": "0x44c0BE17BF4A6fA12d1821a098CA33C7C9BF1cD1",
    "userId": "760859843"
  }
}