{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x21a1249ed020ce71f452e052373be02a70b28d1133aced7776fbf5eb7c0b5e55",
    "signature": "0xf79bdd315e27612eb27277e8eb6857f6dad37de11d9ee2b61e29f2178d06500b695d890ab527b3a4bed948cf039e442b079594c0283714aa06e057991d77fe0a1c",
    "signer": "0x592CdCb22204FFD199568f9102277A0CdF8255D4",
    "userId": "459488125"
  }
}