{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7943971328f336d4b16bff359ff1a4c6f845b9d582c6800bf9a926f289cfe09d",
    "signature": "0x0fce6da10f89a92cffd13cc7183ac55b0e003f16c8455e2159866def96e448f938120d86d37548c1ef4a1e7349a3ecf6a3a7c8b1addb14cdb6f262a990aa55c71c",
    "signer": "0x38A1Ee6dB54e76f16998006192A49737b0A1F8FD",
    "userId": "59179559"
  }
}