{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe97688fac32ecd77cd52a04d552b24989312ca0835145b030f51d10601bf4c29",
    "signature": "0xbc9aff3da2224782fd3b363bb077124f897f7d659f8622e468c9973f79be29aa08b46d94b5a841bbc916b82a1a88e0d4e4784c14bb95224e3960584bec8319021b",
    "signer": "0x7dcc9b6c9444AB64901FcbfBdf9b8e585ea37b3F",
    "userId": "752219501"
  }
}