{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2043650",
    "entityType": "User",
    "nonce": "0x82b06d5d507b46495301d92389e90fe56082ff4b0627d3a13b3de5a3f91e4163",
    "signature": "0x4d3d51d46360edee9e27eccc5de90bc85d111f05659b6d9be66788cb5155eee3530cbe645d81deb70c3af5f723282048834e56b5ee97eeea73ba76ca8087cd151c",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}