{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12728",
    "entityType": "User",
    "nonce": "0xad128e3874d18c3313c8f201e668b4940f7f9ace16ee60cc633af6658c249c58",
    "signature": "0x81dac9e48fd514217e72fd42da0e4087ccf913b2968a2778dd84a9c9b1d9247d69ba4006f1c235d68efad2d32ccdced4e48dae3ea21e9b8a6314e0b7bda9a1151b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}