{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "849312402",
    "entityType": "User",
    "nonce": "0xaea285abf2569251aa34c4ad10053fc6dc403b498c8714223a70dc95f2d2122b",
    "signature": "0xe4b55f0367ce468a02ce870cb98c68b61be99dcdd0364e5ba4d9f69f0e22a6902baaeef1e1848f326d9f37a2d555a9683892f594c55444d0be3ac8d96e941c331c",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}