{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x598e1806fcba4781e7fcadb73fa1624a5f926cad2f54831bf73e5b703f787683",
    "signature": "0xb732c72b5b7030f9662b5bc302fe9e2d74a49b0b29d30ddec3c025e7833fa5e504d44ad526f584878fd035577058c4f8a825a99ac4a84538a71f77ad2307c2b31b",
    "signer": "0x83E8c5a6B84736a649eE7476eD42E219569B7E92",
    "userId": "310890416"
  }
}