{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "240777",
    "entityType": "User",
    "nonce": "0x7c546145cccb416974e7086b24ca537df5cbea8cbc7bf7fcf5f550cf64b6d2d0",
    "signature": "0x5ca1db4d6aa217b6a6b72be348afffbfcab9278a21228f69acecb1d28e6556d35035f1f433f4e40ee7feffc24b9958e5f25e6abebce932c5d786897e26a577d01c",
    "signer": "0x4A0635001f5d34a9227C2391A2a03972C23bcD44",
    "userId": "574030418"
  }
}