{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe72703853ecd674b86d46ce9ff5d1941099c8f2442c8710ee33e30c63538eeff",
    "signature": "0x26e0b742e3a1668b9c28ace86b33bf06b9e2e303b04da6ddbe30267d36c09a875aeb90e08493a3b51b908079317ff9e0bacf49ff3e74215dba76e344d13315e61c",
    "signer": "0x8C7c1057bcC83B88663c3Fe9bb0466Cb916441C2",
    "userId": "797231410"
  }
}